The company specialises in high end installations and A rated windows and insists on sealed units with SWISSPACER warm edge spacer bars inside. SWISSPACER is the best performing foiled warm edge spacer bar in the world and is ideal for energy rated windows.

On 15th July 2013 the BFRC announced important changes to the way spacer bar thermal values are determined and handed responsibility for spacer bar thermal values to the European Warm Edge Working Group. The BFRC has written to thermal simulators and sealed unit makers to advise them of these changes.